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NAME ___________________________________________________ DATE _____________________ PERIOD __________

Lesson 7 Homework PracticeVolume of Pyramids, Cones, and Spheres

Find the volume of each figure. Round to the nearest tenth, if necessary.

1.

12 in.

12 in.

17 in. 2.

3 yd

3 yd

3. 7 ft

408 in. 3

4. 10 m

38 m

11 m

5. 4.5 cm 6.

10 m

12 m

1393.3 m 3 377.0 m 3

7. Find the volume of a rectangular pyramid with a length of 14 feet, a width of 12 feet, and a height of 9 feet. 504 ft 3

8. Find the radius of a sphere with a volume of 972π cm 3 . 9 cm

9. Find the height of a cone with a radius of 12 in. and a volume of 408π in 3 . 8.5 in.

10. A cone with a diameter of 3 inches has a height of 4 inches. A 2-inch square pyramid is being designed to hold nearly the same amount of ice cream. What will be the height of the square pyramid? Round to the nearest tenth. 7.1 in.

7.1 yd 3

1436.8 ft 3

381.7 c m 3

Answers were computed using the π key on a calculator.

Program: Pre-Algebra

Vendor: Aptara

Component: ANC_C12_L7

Grade: AMPDF Pages

Math Accelerated • Chapter 12 Volume and Surface Area

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